Build a fantasy sports website and make money off of the advertising space on your website. Fantasy sports is the huge thing going on in sports right now. Many fantasy sport fans are looking for quality info and stats. This is a huge market.
The number one thing you have to have on your fantasy sports website is quality information. Either you will have to research the information yourself or you can hire someone to lookup the information for you.

One of the keys is you want to always be up to date with your info. Fantasy sports players need up to date quality info. Not updating your fantasy sports website consistently will result in you losing customers. There are many places you can look to find fantasy sports information. ESPN, Yahoo Sports and RotoWorld are just a few common places to look.

Your fantasy sports website should provide all the quality information your readers need, so they do not have to spend their time looking through dozens of websites.
Besides quality content you should also add articles and expert opinions on your website. Finding authors and experts to offer their opinions is not hard at all. Many authors are willing to write articles for a free plug of their product or service on your website. Do the same with getting experts to give their opinions.
Next you need to have up to date information about key players. For instance you should have injury reports available for each player. You should also list whether a certain player will be playing in the next game. Performance stats are also key. You should list stats on who the top performing fantasy player was for the past week, who the rising fantasy stars are and who is not performing well.

This should help you build a fantasy sports website. Once you get the hang of it, you can add many other unique things to your website.